Eminem performed at Wembley Stadium tonight with Odd Future and Danny Brown for the first of his two shows in London, making him the first hip hop act to ever headline at Wembley. To celebrate the occasion ‘Em decided to bring a special surprise guest! After performing all of his own classics Shady brought out Dr. Dre to perform some of his own including “Nuthin’ But A ‘G’ Thang,” “Still D.R.E” and “Next Episode.” And of course, “Forgot About Dre.” Check out the video after the jump!